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Mathematical communication in trigonometry
Worksheet
Grade Level
Trigonometry
TRIG.141 Mathematical communication in trigonometry
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Which explanation correctly interprets the parameters of s(t) = -6cos((2pi/5)t) + 3 in a motion model?
A
The midline is 3, amplitude is 6, period is 5, and the negative sign means the object starts 6 units below the midline when t = 0.
B
The midline is -6, amplitude is 3, period is 2pi/5, and the object starts at the midline.
C
The midline is 3, amplitude is -6, period is 5pi, and the object starts 6 units above the midline.
D
The midline is 0, amplitude is 9, period is 5, and the negative sign has no interpretation.
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